#include"my_stdio.h"
#include"my_string.h"
#include<stdio.h>
int main()
{
    const char *a = "abcdf";
    printf("%s: %d\n",a,my_strlen(a));
    myFILE *fp =mfopen("./log.txt","a");
    if(fp ==NULL) return 1;
    mfwrite(a,my_strlen(a),fp);
    mfwrite(a,my_strlen(a),fp);
    mfwrite(a,my_strlen(a),fp);
    mfclose(fp);
    return 0;
}